Hi both my rear reading light the ones on the side of roof trim do not respond to the switch they stay on this is a potential flat battery if I didn't disconnect them ... I can play with the switch flicking back & forth it does go off but soon as I click it in proper on or off position it stays on gggrrr any ideas please guys , I got a few spares at the wreckers all in good nick but they do the same thing.

does interior light work correctly...........
how many positions are reading light switches - 2 or 3
aftermarket alarm - ??

green/yellow = power
black=permanent earth
black/blue=earth switched from BEM when interior light is operated

check earth on black/blue wire turns off when interior light is turned off

Hi thanks interior light works correctly , No aftermarket alarm I will check the earth wire turns off right now